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  <title>Gets line from file</title>
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  <div id="layout-content"><div id="splfileobject.fgets" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">SplFileObject::fgets</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">SplFileObject::fgets</span> &mdash; <span class="dc-title">Gets line from file</span></p>

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 <div class="refsect1 description" id="refsect1-splfileobject.fgets-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>SplFileObject::fgets</strong></span>(): <span class="type">string</span></div>

  <p class="para rdfs-comment">
   Gets a line from the file.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-splfileobject.fgets-parameters">
  <h3 class="title">参数</h3>
  <p class="para">此函数没有参数。</p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-splfileobject.fgets-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns a string containing the next line from the file, or <strong><code>false</code></strong> on error.
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-splfileobject.fgets-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   Throws a <span class="classname"><a href="class.runtimeexception.html" class="classname">RuntimeException</a></span> if the file cannot be read.
  </p>
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 <div class="refsect1 examples" id="refsect1-splfileobject.fgets-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3705">
    <p><strong>示例 #1 <span class="methodname"><strong>SplFileObject::fgets()</strong></span> example</strong></p>
    <div class="example-contents"><p>This example simply outputs the contents of <code class="literal">file.txt</code> line-by-line.</p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$file&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">SplFileObject</span><span style="color: #007700">(</span><span style="color: #DD0000">"file.txt"</span><span style="color: #007700">);<br />while&nbsp;(!</span><span style="color: #0000BB">$file</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">eof</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #0000BB">$file</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fgets</span><span style="color: #007700">();<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
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 <div class="refsect1 seealso" id="refsect1-splfileobject.fgets-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.fgets.html" class="function" rel="rdfs-seeAlso">fgets()</a> - 从文件指针中读取一行</span></li>
    <li class="member"><span class="methodname"><a href="splfileobject.fgetss.html" class="methodname" rel="rdfs-seeAlso">SplFileObject::fgetss()</a> - Gets line from file and strip HTML tags</span></li>
    <li class="member"><span class="methodname"><a href="splfileobject.fgetc.html" class="methodname" rel="rdfs-seeAlso">SplFileObject::fgetc()</a> - Gets character from file</span></li>
    <li class="member"><span class="methodname"><a href="splfileobject.current.html" class="methodname" rel="rdfs-seeAlso">SplFileObject::current()</a> - Retrieve current line of file</span></li>
   </ul>
  </p>
 </div>


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